Era
20th century
55
21st century
28
Ottoman Empire, 1288-1918
20
- 632
19
d. 632
15
20th century --
13
To 622
12
1945-
9
21st century --
9
1953-
8
1058-1111
7
1925-
7
1233-1277
5
1873-1960
5
1922-1976
5
1944-
5
19th century
5
1263-1328
4
1445-1505
4
1929-
4
1971-
4
780-855
4
d. 795
4
18th century
3
1903-1990
3
1939-
3
600 (ca.)-661
3
622-661
3
622-750
3
640-1250
3
750-1258
3
d. 1285
3
1126-1198
2
1144-1194
2
1258-1800
2
1304-1377
2
1309-1360
2
1516-1918
2
17th century
2
1878-1909
2
1909-1918
2
1919-1947
2
1932-
2
1959-2004
2
1963-
2
1965-
2
1976-
2
1981-
2
19th century --
2
767 or 8-820
2
more ...